Car-wheel.



No. 767,041. PATENTED AUG. 9, 1904.

G. W. GURFMAN.

GAR WHEEL.

APPLIGATION FILED JUNE 1a, 190s.

No MODEL.

@that um NiTED STATES Patented August 9, 1904:. i

PATENT OFFICE.

GEORGE W. OURFMAN, OF CLEVELAND, OHO, ASSIGNOR OF ONF-HALF TO JOHN W.OORTS, OF CLEVELAND, OHIO. i

SFIECIFICATION forming part of Letters Patent N0. 767,041, dated August9, 1904.

Application filed June 13, 1903. Serial No. 161,366. (No model.)

To all whom it may con/cern:

Be it known that I, GEORGE W. CUEEMAN. a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State oi' Ohio,have invented a new and useful Oar- VVheel, of which the following is aspecification.

My invention is an improvement in carwheels of that special type knownas paper wheels, my object being' the production oil a wheel oi' thischaracter which will run noiselessly; and a still further object is toproduce a wheel in which the tire portion can be readily removed whenworn and replaced by a new I5 tire.

My invention consists oi' the peculiar manner in which the paper,leather, or asbestos is arranged between the tire and the body of thewheel, and particularly in the shaping of the 2O inner face of the tireand the periphery of the body portion, whereby pressure is exertedinwardly and outwardly upon the paper packing-inwardly with reference tothe body and outwardly with reference to the sides of the wheel.

My invention also consists oi' the novel features of construction andcombination of parts described hereinafter, particularly pointed out inthe claims, and shown in the accompanying drawings, in which-- Figure lis a side elevation of the wheel. Fig. 2 is a section takendiametrically through the wheel; and Fig. 3 is a detail view, partly insection, showing portions of the tire, paper packing, and body, theparts mentioned being detached.

ln the construction of my improved wheel I use the central gray-ironbody A, which may be of the usual construction so far as the bodyportion of the wheel is concerned. This wheel is formed with an innerand an outer peripheral lange A and A2, lying in diiierent horizontalplanes, the diameter of the circumference oi the outer iiange A2 beingapproximately threefourths of that of the inner flange. Commencing withthe outer iiange, the body is formed adjacent said fiange with a narrowstraight tread A3 at right angles to the iiange.`r Within the iiange Ais a thicker but diametrically lesser iange, forming a rounded shoulderA". Extending 'from the inner end of thetread A3 to the base of theshoulder A'L is an inclined central tread A or face sloping from thetread A3 substantially at an angle of about thirtytwo and a halfdegrees.

The paper or cushioning material is a ring B, having at its outer edgethe straight por tion B parallel to the plane of the axis of the ring,the ring having adjacent its inner edge an outwardly-turned iiange B2 ata right an- 60 gle to the axis of the ring, the edges oi" the flangebeing turned inwardly with reference to the car-truck, the central bodyportion oi the ring BL forming a truncated cone and connecting the partsB/ and B. The tire C is formed with the usual tread C and flange C. Itsinner surface is shaped so as to iit snugly over the cushion andcomprises the inner annular curved recessed portion O3, the straightouter portion C", and the inclined central por- 7 0 tion G. The width ofthe portion C* is equal to the width oi the parts A and Al combined oi'the body oi" the wheel.

In assembling the wheel the part B oil the cushion rests against thetread Aoi` the body portion, the part B3 bears against the shoulder A4,the part B3 bearing on the flange A', and the central portion BL restingagainst the sloping portion A5 of the body. l/Vhen the tire has beenforced in position, as shown in Fig. 30 2, the pressure on the cushionwill torce a thin layer of it between the iianges A' A2 and the tire, asshown at D.

It will be especially noted that by this construction a continuousunbroken cushion extends from the outer to the inner side of the wheel.The bolts E are alternately oii'set, loe- -ing arranged in two series,and by constructing the wheel as described the bolts oiE one series willpass through the thickest portion of the tire and through the shoulderAi, while the bolts of the other series will pass through a portion ofthe main body of the Wheel, malring a stronger construction than Wherethe bolts pass through flanges only.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. A car-Wheel having a body portion having inner and outer peripheralianges the diameter of the inner flange being greater than that of theouter iiange, a rounded shoulder formed Within the inner iange and anunbroken, straight, inclined face connecting the narrow tread With thebase of the shoulder, a tire having peripheral tread and flange portionsand having its inner face formed With an annular curved recess adaptedto receive the shoulder and inner ange of the body portion, a straightportion parallel With the WheelaXis and adjacent the outer face of theWheel, and a central inclined portion, and an unbroken cushion arrangedbetween the body the inner and outer flanges of the body por-y tion-fromthe tire.

2. A car-Wheel having a central body portion, the periphery of saidportion being inclined intermediate the faces of the Wheel Withreference to the car-axle, the said body portion being flanged at eachside, a tire portion comprising a tread-surface and a flange portion,and having an inner face adapted to bear on the flanges of theperiphery, and a paper cushion arranged on the periphery of the bodyportion adapted When under pressure of the tire to overlap the Hanges ofthe body portion and hold the tire out of contact With said flanges andwith the intermediate portion of the periphery of the body of the Wheel.

GEORGE W. CURFMAN. l/Vitnesses:

NATHAN LEEDS, L. M. SCHARF.

ssY

